Tunisia's main international airport for scheduled flights is Tunis-Carthage International Airport TUN near Tunis. From the airport, you can catch a taxi to the center of Tunis beware, meters may be rigged. They are best hailed from the 2nd floor departure hall to avoid getting swindled, should cost no more than 5D to downtown Tunis Avenue Habib Bourguiba area during the daytime, and no more than 10D between 9pm-5am during which meter rates are double daytime rates.
Alternatively, take bus # 635 or # 35 to Ave Habib Bourguiba for 0,470 dinars. The bus comes roughly every half-hour and stops in front of the terminal.
Official airport wifi requires purchase, but connection to the public "LINDO CAFE" network from a restaurant of the same name is free.
For cheap snacks and coffee/tea in place of overpriced airport fare, walk 3 minutes straight out of the airport's bottom floor arrivals, past the fountain, through the parking lot, and you'll find a small convenience store and cafe selling items at local prices espresso for 700 millimes. It is next to a utilitarian car wash.
Tunisia's second airport is Habib Bourguiba, Skanes-Monastir MIR which is served by low cost charter flights from all over Europe. Monastir is nearer to most of the holiday destinations. Inexpensive charter flights at least from the UK are available through airlines such as Thomas Cook. From May 2010, Jet2.com (http://flights.jet2.com) will also operate a service to Monastir. Other destinations with international airports include Tozeur and Djerba.
Other Airports countrywide are serving national and international flights, and here is a list of the Tunisia's Airports:Tunis Carthage Intl Airport near Tunis North Tunisia - (http://www.thomascook.com...) Bourguiba Skanes Monastir near Monastir Central East Tunisia - Sfax Thyna Airport near Sfax Central East Tunisia - Tozeur Nefta Intl Airport near Tozeur South West Tunisia - Gafsa Airport near Gafsa South West Tunisia - Tabarka November 7th 1987 near Tabarka North West Tunisia - Djerba International Airport in Djerba Island South East Tunisia - (http://www.thomascook.com...)